Method for molding clay or similar material.



D. w. Mmm; METHOD FOR MOLDlNG CLAY 0R SNHLR MATERl/KL,

. l APPLxcAUQN man sPT.1a.191o. l,l2%2.- Paentedjune 8, 1915.

' 2 sHTssHEET 2.

Nummer. I

onerosi. i

DANIEL W. Meriem, or nonwoon, omo, Assrenon To 'rein JOHN :sonores comparer,

e. o'onronerioiv or oriio.

:warnen son 'riteniamo CLAY on sii/umn MATERIAL.

speciucerion oi Letters raient'.y

resented ,irme s, isis.

miglio-al application led February 9, 1910,-Seria1 No. 542,826.- Divide and this application filed September 13, 1910. I serial No. 581,842.

To all 'whom it may concern."

.Be itknown .that 1, 'DANinL W. McNeil., a .citizen of Athe United States, residing at Norwood., in the county of Hamilton, State of Chio, have invented a new vand useful' .re uired.: .pressure `in a properly shaped ino and of readilyremoving theproduet from. the mold, whereby the material= forming the article molded shall contain a mini- .murn amount of moisture.A

My processor method comprises the following steps,-confining a nearly dry powdered materiahsuchas clay, in approximately the form orshape of. the finished material, except that its walls are thicker,

then subjecting the saine. to pressure, which compacts the wallsso that the whole mass holds together and is self-sustaining and can be` removed to akiln, .then subjecting the saine tothe u'snaltreatment in a kiln.-

This application is a divisional of my ycopending ap, lieation filed Feb. 9, 1910, Serial No.. 542,825l

aneainple of a preferred or suitable mechanism whereby the-process comprising my invention may be. readily realized, I will describe an apparatus which is illustrated in the accompanying drawings Figure 1 is a vertical section on,li'ne 1 1 i o,Fig. 2. Fig 2 is a .side elevation with `part in section. Fig. 3, is a'perspective vew of one of thejiiiovahle sides of the mo d. l

Fig. 4; is a perspective .Viewofthe other movable side. Fig. 5 is a similar view `of the bottom .element of the mold. Fig .6 is

asimilar view or" a top element. Fig. 7 is l a similarview of an end element. Fig. 8

a perspective view of a supporting frame.

Fg- 9. is a perspective view ofl a wedge.

Similar. numerals refer to similar parts throughout the. several views.

The apparatus illustrated -the said drawings is adapted'to mold a tank of clay material such as earthenware or vitreous tchina. j Fig. 1 indicatesthe several parts in as* sembled operative relationship.

1 0 is the base of the mold, to which are I pivotally secured or hinged by the pivot pins 11 and 12 the side elements 13 and 11.

The top element 15 is recessed, as clearly shown in Fig.'1, to copei'ate in locking in operative position, the side elements 13 and 14:. Elemeirtl 15is provided with the shoulders 16 for engaging the upper ends of ele- .,ments 13 and 14 to preventtheir opening outwardly. with the recesses 17 adapted top engage the Element 15 is also provided arms 18 of said side members 13 and 111.

'Arms lSvare provided with apertures 19 for receiving thewedges 20, which lock the ole with .the ,registering apertures 2li for revceiving the pivot pinsll and 12.

The side members 13 and 14 are provided with the shoulders 25 and 26 for engaging the end pieces27 for holding same in position. r `The frame 28, is adapted' to'it .in the recess 29A of bottom member` 10.. 'l-lhis frame 2 8 provides means for supporting and re- Amoving theA molded article 36, when the saine has been compressed.

When the several parts are assembled in the operative position a mold is formed having they shape of the exterior of thetaiilr to be pressed therein.

The expansible chum or core 30`is made of heavy Vrubber or other similar material,

having walls of such tliielrness and consisteiiy as to make the same self-sup oi'tiiig, thatis, yable to retain its shape un er nor! mal conditions, and also to enable it to snpport the weightoi elayy'or. similar material.

tobeused in forming the article 3G. This chuinBO is provided with a horizontal inwardly extending rim or lip 31, adapted te .reist nponthe top of base 10. Upon `this l g. 1,142,342: i1

rim 31 rests the frame 32 which is 'clamped comes out of the mold. This is obviously a' down by the yoke 33 and bolts 34:. B'y great improvement in the method of moldtightening the nu 35, the frame 32 is. ing clay articles now in commonuse, in 65 pressed rinly against the rim or lip 3l of. which the clay is placed in the mold in a 5 chum 30 holding the same securely to the wet or plastic state. That? is to say, when base, and preventing any leak of fluid o1; the vmaterial is formed by hand lupon the ir llietwe'en the chum and the base memcorda-great deal of moisture-is required to The base l0 is provided with the vertiing assembled; and after such clay has been l0 .g'ially extendingi channel 37, adapted to open pressed, the moisture is so great that it reiinto the mouth. of the chum 30. The lower quires a great deal of tim for the piece of portion of the channel is connected with the work to` dry, while, as above stated, by my tee 38 which is provided with the threaded process the article isfalmost dry enough to 75 opening, 39 for connection with a suitable be placed in the kiln immediately as itcomes or compressor not shown. The pipe out ci the inold.' v ff 40 extends Jfrom near `Lne Ktop of the chum If iiuid is used in expanding the core orv through channel 37 iiiownwardly, and is chum, the cock 41 is opened to permit the ese open at the top and is controlled near its cape, through pipe'40, of air displaced by 80 lower extensin by :the cock 41. the fluid.4 As soonas the weten-for example,

20 lt will be understood that the inneij; walls is seen to escape through pipe 40g the cock ofthemold correspond tothe outersuri'ace 41 is closed. n ,a

of the article to be `formed thereby. The As soon as suilcient pressure is exerted .chum or ore is. of corresponding shape, but upon the material in the mold, by expanding 85 of less dimensions; that is, when normal, it the rubber chum, the iluid -is permitted to :2.5 is of sHiciently-less dimensions toprovide escape from the core or chum, through tee'4 just space, enough between it and the mold 38. This permits the chum to assume its to receive the required amountV of clay or original dimension. The cap or top 15 is similar material to form the article to be thenlremoved, the sides 14 and `13eme opened 90 molded.. v A Y up, and the ends 27 are also removed. e

30 l'The method orprocess'of moldin the 'arvrectangular frame 28 may now be lifted to ticlamaybe described as follows: e mold remove the compressed article 36 from over is"placedin the position shown in Fig. l, the core or chum 30.-' The article is then hold the clay in place while the'mold is be- 7 Q A c i with the except'on that the cap, or top elecarried to the kiln and tired in the usual 95 nient 15 is rein ved. Thevspace between the way.

x core or chum 30, and the sides and ends 13,- What I claim is:

14 and27 of the mold, is filled with loose 1 The method, which consists in iilling Vnuaterial; This material, whichl Lis in the the space between a mold for an object hav- I form of a nearly dry powder, 4is practically ing a side or. sides and an inclosed end nieet- 190 f poured into the mold about the core, and the ing at a relatively sharp angle, and an in- 40 top of the core or chum 30 is also 'covered closed elastic core, of normally correspondwith a suilcient thickness of said material. ing and nearly the same contour, but of The cap `cfr top v15 is then put into place as lesser dimensions; with a nearly dry pow showninFig. 1, and locked firmly in said dered clay, and then expanding' the core by 195 position by the wedges 20, Fluid or coinfluid pressure.` i

pressed air is then made to enter through tee 2. The' methodfof ymaking hollowvware 38,- and pass through the channel 37' to the having a side or sides aiid--an inclosed end y interior of core or chum 30, causing the said kmeeting at a relatively sharp angle, of clay core or chum to expand and press the suior similar material, which consists in con- 110 rounding material against the inside walls lining the material in a nearly dry powdered of the mold. lt will be understood that the state in approximately the shape and nearly material, while in the loose unconfined state, the same dimensions of the article to be' resembles an" almost dry powder, butv when formed, and then subjecting the same to the saine is put underconsiderable pressure, duid pressure from within.' 115 as bythe expanding' of the core in the mold, 3.aThe art of making hollow ware having Aa suiiicient proportion. 'of mpisture {will be a side or sides and an inclosed end of clayl oi' contained in the mass to cause the mass to similar materiah'which consists in confining maintain the shape in which il: has been com* the material in a nearly dry powdered state pressed. The amount of such inoisturerein. approximately the form and of nearly 120 quired' to maintain the mass in its cointhe same dimensions as the articlelto be pro- F'60 pressed shape is comparatively extremely duced and then subjecting the same to pressmall, so that the compressed article is alsure in the several directions ofthe thickmost dry enough for the kiln as soon as it ness of 'itswalls 4. The art of making holloW Ware having sure from Within to compact the nearly dry ,a side or sides and1 anhinllosed end of clay clay and burning thel product. or simi ar materia, W ic consists in conining the material in a nearly dry powdered DANIEL W' MGNEIL' 5 state, in approximately the form and of Witnessesr nearly the same dimensions as the article to Jnssm DAHLMAN, be produced, then subjecting it to fluid pres- RICHARD MATHERS. 

